CameraNIR.py
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import configparser
import socket
from enum import Enum
import time
import os
from random import randint
IMAGES_FOLDER = '../src/images'
CONFIG_FILE = "socket_config.ini"
EXPOSURE_TIME = 5
SHUTTER_TIME = 3
COOLER_TIME = 10
class ReadmodeEnum(Enum):
ramp = "Ramp"
# TODO: définir les modes de lecture
class ShutterEnum(Enum):
synchro = "Synchro"
closed = "Closed"
opened = "Opened"
class CameraNIR():
def __init__(self):
config = configparser.ConfigParser()
config.read(CONFIG_FILE)
ip = config.get("CameraNIR", "ip")
port = int(config.get("CameraNIR", "port"))
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.bind((ip, port))
self.sock.listen(122)
self.set_msgs = [
("WINDOW", [4, ], int),
("READMODE", [1, ], ReadmodeEnum),
("FILENAME", [1, ], str),
("HEADER", [1, ], dict),
("READOUT_FREQUENCY", [1, ], float),
("NB_IMAGES", [1, ], int),
]
self.get_msgs = [
"STATUS",
"SETUP",
"TEMPERATURE",
"TIMER",
]
self.do_msgs = [
("COOLER", [2, ], float),
("SHUTTER", [1, ], ShutterEnum),
("START", [0, ]),
("ABORT", [0, ]),
("STOP", [0, ]),
]
''' I will just fill the attributes with their names and params without regarding them '''
self.attributes = {}
self.attributes["FILENAME"] = "default_nir_" + str(randint(1, 10000))
self.status = "IDLE"
self.shutter_status = "CLOSE"
def loop(self):
# à gérer : la réception des paramètres, le temps de shutter (et son statut), le temps de start, le stop, le abort, la création d'images
cooler_timer = 0
shutter_timer = 0
exposure_timer = 0
while True:
try:
conn, addr = self.sock.accept()
except socket.error as e:
print("There was a socket error: " + repr(e))
break
data = conn.recv(128).decode()
print("Received: " + data)
answer = ""
cut_data = data.split(" ")
if cooler_timer != 0 and time.time() > cooler_timer:
cooler_timer = 0
status = "IDLE"
print("Ended cooling")
if shutter_timer != 0 and time.time() > shutter_timer:
shutter_timer = 0
print("Ended shutter")
if exposure_timer > 0 and time.time() > exposure_timer:
exposure_timer = -1
print("Ended exposure")
with open(os.path.join(IMAGES_FOLDER, self.attributes["FILENAME"]), 'w'):
pass
if len(cut_data) < 2:
print("Invalid message: " + data)
else:
cmd_type = cut_data[0]
cmd = cut_data[1]
args = cut_data[2:]
if cmd_type == "SET":
if cmd == "FILENAME":
if len(args) > 0:
self.attributes["FILENAME"] = " ".join(args)
else:
print("An argument is needed for the FILENAME command")
else:
self.attributes[cmd] = args
elif cmd_type == "GET":
if cmd == "STATUS":
answer = self.status
elif cmd == "TEMPERATURE":
answer = "GET TEMPERATURE answer not implemented"
elif cmd == "SETUP":
answer = "GET SETUP answer not implemented"
elif cmd == "TIMER":
if exposure_timer > 0:
answer = str(int(exposure_timer - time.time()))
else:
answer = str(exposure_timer)
else:
answer = "Invalid cmd for GET: " + cmd
print(answer)
elif cmd_type == "DO":
if cmd == "START":
exposure_timer = time.time() + EXPOSURE_TIME
elif cmd == "STOP":
exposure_timer = -1
elif cmd == "ABORT":
exposure_timer = -1
elif cmd == "COOLER":
cooler_timer = time.time() + COOLER_TIME
elif cmd == "SHUTTER":
shutter_timer = time.time() + SHUTTER_TIME
else:
print("Invalid cmd for GET: " + cmd)
else:
print("Invalid message: " + data)
if len(answer) > 0:
conn.send(bytes(answer, "UTF-8"))
print("send: " + answer)
conn.close()
cam = CameraNIR()
cam.loop()